Over the last three years Mac Civil Construction has completed many contracts ranging from pipe size, 650mm, 450mm, 355mm, 315mm and many of the normal sizes ranging from 280mm to 25mm.

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MAC has also completed contracts where the annulus around the installed product was to be grouted.

Mac has various techniques and way in grouting the annulus area around a pipe, depending on ground condition, Ground Slope and pipe size. Mac has at it’s disposal, various types of products ie (Bentonites & Polymers) to not only help with the installation of the product but also the longevity of the product in all type’s of ground conditions, ranging from, Hard or loose rock, Sand and saltwater, pumice or any kind of volcanic rock or hot or vented areas.

There are many different ways to deal with volcanic vented area, Mac has the ability to re-route and block these or run the product through these and grout around the product and by-pass the vent around the product if needed. The normal protocol of MAC in any heated area is to bore a bigger hole and grout the area with a very high viscosity bentonite.

All other ground types are quite easy to deal with.
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Mac has drilled many major river crossings successfully, the most recent one being a 180m drill shot under the Rangitaiki River.

This was very urgent from the councils perspective and needed to be completed in a couple of day as the old pipe was lacking underneath the river. This was a very important job due to the fact that this river was very close to the sea and if any frack-outs were to occur, would go straight into the sea, and was also under the scrutiny of the Regional Council and the Whakatane District Council. The Job went well and as to plan.
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Mac plans to continue good and friendly relationships with its clients and is all about good communication.

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Other Services We Provide:
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Installing new lights for the council on football fields, Whakatane airport, and streets.

We have our own reinstatement team, where we reinstate, hotmix and concrete, up to the size of driveways and also patch area in the corridor.